Bruteforcing VeraCrypt drive while knowing password pattern

[hblender]

since the mayority of veracrypt modes are somewhat slow, i suggest you using maskprocessor because it can generate candidates rejecting (almost*) the ones cotaining duplicated symbols and characters.
That being said, for 16 char long passwords i would try this

Code:

mp64 -r2 -q2 ?u?l?l!?u?l?l@?u?l?l#?u?l?l$ | hashcat -m <hash mode> hash.txt

This should go from Aab!Bcd@Cef#Dgh$ to Zzy!Yxw@Xvu#Wts$


And for, 12 char long passwords i would try this

Code:

mp64 -r2 -q2 -1 !@#$ ?u?l?l?1?u?l?l?1?u?l?l?1 | hashcat -m <hash mode> hash.txt

This should go from Aab!Bcd@Cef# to Zzy!Yxw@Xvu#


*sadly it mp only allow up to 2 sequential characters and up to 2 same characters in the candidate.